I hardly ever use the eq bars. In fact I often hide the eq window, so I'm more concerned about the skin looking nice with just the Main and Playlist stuck together.
I don't mind if a skin doesn't have eq bars, as long as it's justified (i.e., the skin's design would ultimately suffer if the bars were left in). If you're doing it out of terminal laziness, well, that's another story.
I'd say make two Eq bitmaps, one without bars and one with straightforward, plain vanilla bars. Include both with the skin and let the user choose.
P.S. - I voted for "as long as you finish a skin, I don't care." You are
going to finish a skin, aren't you?!